Welding device for circuit board processing

Abstract

The invention belongs to the technical field of circuit board welding, and particularly relates to a welding device for circuit board machining, which comprises a worktable body, a support column fixedly connected to the surface of the worktable body and a fixing plate fixedly connected to the top end of the support column, and a welding gun is fixedly mounted on the surface of the worktable body. A turnover type clamping assembly is fixedly installed on the upper portion of the workbench body, the turnover type clamping assembly comprises a first rotating shaft, a vertical plate, a rectangular frame, a two-way screw and an L-shaped clamping strip, and a multi-station pressing assembly is fixedly installed on the surface of the rectangular frame. And the multi-station pressing assembly comprises a supporting rod, a top plate, a second air cylinder, a movable plate, an elastic telescopic rod and an abutting block, and the smoke removing and cooling assembly is fixedly installed on the surface of the fixed plate and comprises an air suction cover, a first air pipe, a draught fan, a second air pipe, a third air pipe and an air uniformizing plate. And the electronic components do not need to be welded by workers gradually, so that the welding efficiency is high.

Description

Technical Field

[0001] The invention belongs to the technical field of circuit board welding, and in particular relates to a welding device used for circuit board processing. Background Art

[0002] Circuit board is the provider of electrical connection for electronic components. It is based on insulating board, cut into certain size, with at least one conductive pattern attached and holes (such as component holes, fastening holes, metallized holes, etc.) arranged on it. It is used to replace the chassis of electronic components in the past and realize the interconnection between electronic components.

[0003] When soldering a circuit board, first insert the pins of various electronic components into the corresponding holes on the circuit board, then flip the circuit board over and perform circuit soldering on the back. Currently, there are still a large number of circuit boards that need to be manually soldered. During soldering, the operator holds a soldering gun and a soldering rod and places the circuit board on a desktop or other flat surface to complete the soldering.

[0004] However, during the welding process, the directly placed circuit board may move, resulting in inconvenience in welding, and electronic components need to be inserted one by one during welding, and the next one will be inserted after the welding of the inserted electronic component is completed, and so on. This welding method requires welders to frequently insert electronic components into the surface of the circuit board, which is more complicated to operate and reduces welding efficiency. At the same time, smoke will be generated during the welding process, and the welding slag in the smoke may adhere to the surface of the circuit board.

[0005] Therefore, a welding device for circuit board processing is designed to solve the above problems. Summary of the invention

[0006] In order to solve the problems raised in the above background technology, the present invention provides a welding device for circuit board processing.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a welding device for circuit board processing, comprising a workbench body, a support column fixedly connected to the surface of the workbench body, and a fixing plate fixedly connected to the top of the support column, wherein a welding gun is fixedly installed on the surface of the workbench body;

[0008] A reversible clamping assembly is fixedly installed above the workbench body, and the reversible clamping assembly includes a first rotating shaft, a vertical plate, a rectangular frame, a bidirectional screw and an L-shaped clamping strip;

[0009] A multi-station pressing assembly is fixedly installed on the surface of the rectangular frame, and the multi-station pressing assembly includes a support rod, a top plate, a second cylinder, a moving plate, an elastic telescopic rod and a pressing block;

[0010] A smoke removal and cooling component is fixedly installed on the surface of the fixed plate, and the smoke removal and cooling component includes an air suction hood, a first air duct, a fan, a second air duct, a third air duct and an air distribution plate.

[0011] As a preferred welding device for circuit board processing of the present invention, the surface of the workbench body is symmetrically fixedly connected with vertical plates, the surfaces of the two vertical plates are rotatably connected with first rotating shafts, a rectangular frame is fixedly connected between the two first rotating shafts, the surface of the rectangular frame is symmetrically rotatably connected with bidirectional screws, the interior of the rectangular frame is symmetrically slidably connected with L-shaped clamps, and the L-shaped clamps are threadedly connected to the bidirectional screws.

[0012] As a preferred welding device for circuit board processing of the present invention, one end of one of the first rotating shafts extends to the outside of the vertical plate and is fixedly connected to a first gear arranged on the outside of the vertical plate, a first cylinder is fixedly installed on the surface of the workbench body, an output end of the first cylinder is fixedly connected to a first gear plate, and the first gear plate is meshingly connected to the first gear.

[0013] As a preferred embodiment of the welding device for circuit board processing of the present invention, a rubber pad is fixedly connected to the surface of the L-shaped clamp.

[0014] As a preferred welding device for circuit board processing of the present invention, support rods are fixedly connected to the surface of the rectangular frame near its four corners, the top ends of the support rods are fixedly connected to a top plate, a second cylinder is fixedly installed on the surface of the top plate, the output end of the second cylinder passes through the top plate and is fixedly connected to a movable plate arranged at a position below the top plate, a plurality of elastic telescopic rods are fixedly connected to the bottom surface of the movable plate at equal intervals, and a pressure block is fixedly connected to the bottom end of each of the elastic telescopic rods.

[0015] As a preferred welding device for circuit board processing of the present invention, an L-shaped slide plate is symmetrically fixedly connected to the surface of the movable plate, a limiting slide bar is fixedly connected between the top plate and the rectangular frame, and the L-shaped slide plate is slidably sleeved on the surface of the limiting slide bar.

[0016] As a preferred welding device for circuit board processing of the present invention, a fan is fixedly installed on the bottom surface of the fixed plate, the air inlet end of the fan is fixedly connected to the first air duct, the end of the first air duct is fixedly connected to the air suction hood, the surface of the air suction hood is fixedly connected to the filter plate by bolts, the air outlet end of the fan is fixedly connected to the second air duct, the end of the second air duct is provided with a third air duct, the bottom end of the third air duct extends to the lower side of the fixed plate, and is fixedly connected to the air equalizing plate provided at a position below the fixed plate.

[0017] As a preferred welding device for circuit board processing of the present invention, a cooling water tank is fixedly connected to the surface of the fixed plate, an end of the second air duct extends to the interior of the cooling water tank and is fixedly connected to a cooling pipe arranged inside the cooling water tank, an end of the cooling pipe is fixedly connected to a third air duct, and the third air duct is fixedly connected to the cooling water tank.

[0018] As a preferred embodiment of the welding device for circuit board processing of the present invention, a collection box is slidably mounted on the surface of the workbench body at a position below the suction hood.

[0019] As a preferred welding device for circuit board processing of the present invention, one end of the first rotating shaft is rotatably connected to a rotating block, the surface of the workbench body is fixedly connected to a U-shaped frame at a position below the rotating block, the surface of the U-shaped frame is symmetrically and slidably connected to a T-shaped rod, the top of the T-shaped rod is fixedly connected to a touch block, a reset spring sleeved on the surface of the T-shaped rod is symmetrically fixedly connected between the touch block and the U-shaped frame, a pressure rod is fixedly connected to the bottom surface of the touch block, and a touch switch is fixedly connected to the surface of the U-shaped frame at a position below the pressure rod.

[0020] Compared with the prior art, the present invention has the following beneficial effects: the present invention has a scientific and reasonable structure and is safe and convenient to use:

[0021] 1. A reversible clamping assembly is provided, which can clamp and fix circuit boards of different sizes to ensure that the circuit boards will not move during welding, and can also flip the circuit boards to facilitate welding of the electrode leads of the electrical components with the circuit boards;

[0022] By providing a first rotating shaft, a vertical plate, a rectangular frame, a bidirectional screw and an L-shaped clamping strip, when in use, first adjust the distance between the two L-shaped clamping strips according to the size of the circuit board. During the adjustment process, first make the distance between the two L-shaped clamping strips slightly larger than the size of the circuit board, then place the circuit board between the two L-shaped clamping strips, and then the welder rotates the bidirectional screws with both hands at the same time. The two bidirectional screws rotate synchronously and then can drive the two L-shaped clamping strips to approach each other until the two L-shaped clamping strips clamp the circuit board, and the circuit board can be fixed, ensuring that the circuit board will not move during the welding process, thereby ensuring the welding quality;

[0023] The use of rubber pads can prevent the two L-shaped clamps from damaging the circuit board during the clamping process;

[0024] In combination with the use of the first gear, the first cylinder and the first gear plate, the circuit board can be flipped 180 degrees after all the electrical components are inserted into the surface of the circuit board, thereby facilitating welders to weld the electrode leads of the electrical components. Welders do not need to insert electronic components into the surface of the circuit board one by one and weld them one by one. All electrical components to be welded can be inserted into the surface of the circuit board at one time and then welded, thereby improving welding efficiency.

[0025] 2. It is equipped with a multi-station clamping assembly, which can adaptively clamp the electrical components inserted into the surface of the circuit board to prevent the electrical components from falling off when the circuit board is flipped later;

[0026] In conjunction with the use of the support rod, top plate, second cylinder, moving plate, elastic telescopic rod and pressing block, after the electrical component is inserted into the surface of the circuit board, the second cylinder is started, and the moving plate is driven to move downward by the operation of the second cylinder, and the elastic telescopic rod is driven to move downward by the moving plate for a certain distance, so that the pressing block can press against the surface of the shortest electrical component. At this time, the operation of the second cylinder can be stopped, and the electrical component is adaptively pressed by the elastic telescopic rod to ensure that the electrical component will not fall when the circuit board is turned over;

[0027] In addition, by using the L-shaped slide plate and the limit slide bar, the moving trajectory of the moving plate can be limited to prevent the moving plate from tilting during the movement.

[0028] 3. A smoke removal and cooling component is provided. On the one hand, it can absorb the smoke generated during welding to prevent the welding slag in the smoke from remaining on the surface of the circuit board and affecting the welding quality between the circuit board and the electronic components. On the other hand, it can blow air to the circuit board during welding so that the solder joints can be quickly cooled and solidified.

[0029] Through the coordinated use of the air suction hood, the first air duct, the fan, the second air duct, the third air duct and the air distribution plate, during the welding process, by starting the fan, the smoke generated by the fan is sucked into the first air duct and the second air duct through the air suction hood, and after being processed, it is transported to the air distribution plate through the third air duct, and then blown to the surface of the circuit board through the air distribution plate, so that the welding position can be cooled, and the circuit board can be removed quickly when the welding is completed;

[0030] In addition, a certain distance is set between the air distribution plate and the circuit board, so that the wind blown out by the air distribution plate can be blown softly to the surface of the circuit board, which can not only achieve cooling, but also prevent major interference with the absorption of smoke;

[0031] In addition, with the use of cooling water tanks and cooling pipes, the wind generated by the fan can pass through the cooling pipes and cooling water in the cooling water tank to cool down during the transportation process, thereby improving the cooling efficiency of the circuit board;

[0032] And with the use of filter plates and collection boxes, after use, the welding slag filtered on the surface of the filter plates can be centrally processed and collected;

[0033] In conjunction with the use of a rotating block, a U-shaped frame, a T-shaped rod, a touch block, a reset spring, a pressure rod and a touch switch, when the circuit board is flipped, the rotating block is driven to rotate as the first rotating shaft rotates. When the circuit board is flipped 180 degrees, the rotating block rotates to the surface of the touch block, and the touch block is squeezed by the rotating block, so that the touch block moves downward in cooperation with the T-shaped rod, so that the pressure rod contacts the touch switch. At this time, the operation of the fan can be automatically controlled without human operation, and it is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0035] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ;

[0036] Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ;

[0037] Figure 3 The overall structure of the present invention is shown in FIG. Figure 3 ;

[0038] Figure 4 This is a schematic diagram of the connection structure of the smoke removal and cooling component in the present invention;

[0039] Figure 5 It is a partial structural schematic diagram of the smoke removal and temperature reduction component in the present invention;

[0040] Figure 6 The structure of the reversible clamping assembly of the present invention is shown in FIG. Figure 1 ;

[0041] Figure 7 The structure of the reversible clamping assembly of the present invention is shown in FIG. Figure 2 ;

[0042] Figure 8 The structure of the reversible clamping assembly of the present invention is shown in FIG. Figure 3 ;

[0043] Fig. 9 It is a schematic diagram of the connection structure of the multi-station pressing assembly in the present invention;

[0044] Fig.10This is a schematic diagram of the connection structure of the bidirectional screw and the L-shaped clamping strip in the present invention;

[0045] Fig.11 It is a schematic diagram of a partial connection structure of a multi-station pressing assembly in the present invention;

[0046] Fig.12 for Figure 6 The enlarged structural diagram at A in the middle;

[0047] In the figure:

[0048] 1. Workbench body; 2. Support column; 3. Fixed plate; 4. Welding gun; 5. Reversible clamping assembly; 51. First cylinder; 52. First tooth plate; 53. First gear; 54. First rotating shaft; 55. Vertical plate; 56. Rectangular frame; 57. Bidirectional screw; 58. L-shaped clamping strip; 59. Rubber pad; 510. L-shaped limit plate; 6. Multi-station clamping assembly; 61. Support rod; 62. Top plate; 63. Second cylinder; 64. Limiting slide bar; 65. L-shaped slide plate; 66. Moving Plate; 67, elastic telescopic rod; 68, pressure block; 7, smoke removal and cooling component; 71, cooling water tank; 72, suction hood; 73, first air duct; 74, fan; 75, second air duct; 76, cooling pipe; 77, heat dissipation fin; 78, third air duct; 79, air distribution plate; 710, filter plate; 711, collection box; 712, rotating block; 713, U-shaped frame; 714, T-shaped rod; 715, touch block; 716, pressure rod; 717, touch switch; 718, reset spring. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] Example: See Figure 1-12 The present invention provides a technical solution: a welding device for circuit board processing, comprising a workbench body 1, a support column 2 fixedly connected to the surface of the workbench body 1, and a fixing plate 3 fixedly connected to the top of the support column 2, and a welding gun 4 is fixedly installed on the surface of the workbench body 1;

[0051] A reversible clamping assembly 5 is fixedly installed above the workbench body 1, and the reversible clamping assembly 5 includes a first cylinder 51, a first tooth plate 52, a first gear 53, a first rotating shaft 54, a vertical plate 55, a rectangular frame 56, a bidirectional screw 57, an L-shaped clamping strip 58, a rubber pad 59 and an L-shaped limiting plate 510;

[0052] A multi-station pressing assembly 6 is fixedly mounted on the surface of the rectangular frame 56. The multi-station pressing assembly 6 includes a support rod 61, a top plate 62, a second cylinder 63, a limit slide rod 64, an L-shaped slide plate 65, a moving plate 66, an elastic telescopic rod 67 and a pressing block 68.

[0053] A smoke removal and cooling component 7 is fixedly installed on the surface of the fixed plate 3, and the smoke removal and cooling component 7 includes a cooling water tank 71, an air suction hood 72, a first air duct 73, a fan 74, a second air duct 75, a cooling pipe 76, a heat dissipation fin 77, a third air duct 78, an air equalizing plate 79, a filter plate 710, a collecting box 711, a rotating block 712, a U-shaped frame 713, a T-shaped rod 714, a touch block 715, a pressure rod 716, a touch switch 717 and a reset spring 718.

[0054] A vertical plate 55 is symmetrically fixedly connected to the surface of the workbench body 1, and a first rotating shaft 54 ​​is rotatably connected to the surfaces of the two vertical plates 55, wherein one end of one of the first rotating shafts 54 extends to the outside of the vertical plate 55 and is fixedly connected to the first gear 53 arranged on the outside of the vertical plate 55; a first cylinder 51 is fixedly installed on the surface of the workbench body 1, and a first tooth plate 52 is fixedly connected to the output end of the first cylinder 51, and the first tooth plate 52 and the first gear 53 are meshingly connected; an L-shaped limit plate 510 is fixedly connected to the surface of the vertical plate 55, and the L-shaped limit plate 510 and the first tooth plate 52 are slidably connected; a rectangular frame 56 is fixedly connected between the two first rotating shafts 54, and a bidirectional screw 57 is symmetrically rotatably connected to the surface of the rectangular frame 56, and an L-shaped clamp 58 is symmetrically slidably connected to the inside of the rectangular frame 56, and the L-shaped clamp 58 and the bidirectional screw 57 are threadedly connected, and a rubber pad 59 is fixedly connected to the surface of the L-shaped clamp 58.

[0055] It should be noted that the movable length of the first tooth plate 52 can drive the first gear 53 to rotate 180°.

[0056] The surface of the rectangular frame 56 is fixedly connected with support rods 61 near its four corners, and the top ends of the support rods 61 are fixedly connected with top plates 62. A second cylinder 63 is fixedly installed on the surface of the top plate 62. The output end of the second cylinder 63 passes through the top plate 62 and is fixedly connected to a movable plate 66 arranged at a position below the top plate 62. A plurality of elastic telescopic rods 67 are fixedly connected to the bottom surface of the movable plate 66 at equal intervals, and a pressing block 68 is fixedly connected to the bottom end of each elastic telescopic rod 67. An L-shaped slide plate 65 is symmetrically fixedly connected to the surface of the movable plate 66. A limiting slide bar 64 is fixedly connected between the top plate 62 and the rectangular frame 56, and the L-shaped slide plate 65 is slidably sleeved on the surface of the limiting slide bar 64.

[0057] It should be noted that the elastic telescopic rod 67 includes a hollow outer rod, an inner rod and a compression spring. The inner rod is slidably connected inside the hollow outer rod. A compression spring is fixedly connected between the inner rod and the hollow outer rod, which can adaptively compress the electrical component according to its height.

[0058] A cooling water tank 71 is fixedly connected to the surface of the fixed plate 3, a fan 74 is fixedly installed on the bottom surface of the fixed plate 3, an air inlet end of the fan 74 is fixedly connected to a first air duct 73, an end of the first air duct 73 is fixedly connected to an air suction hood 72, a filter plate 710 is fixedly connected to the surface of the air suction hood 72 by bolts, the air suction hood 72 is fixedly connected to the fixed plate 3 by an L-shaped bracket, a second air duct 75 is fixedly connected to the air outlet end of the fan 74, an end of the second air duct 75 extends to the interior of the cooling water tank 71, and is fixedly connected to a cooling pipe 76 arranged inside the cooling water tank 71, an end of the cooling pipe 76 is fixedly connected to a third air duct 78, the third air duct 78 is fixedly connected to the cooling water tank 71, a bottom end of the third air duct 78 extends to the lower side of the fixed plate 3, and is fixedly connected to a cooling pipe 76 arranged inside the fixed plate 3. The air equalizing plate 79 is fixedly connected at the position below the fixed plate 3, and a collecting box 711 is slidably installed on the surface of the workbench body 1 at a position below the suction hood 72, and a rotating block 712 is rotatably connected to the end of one of the first rotating shafts 54, and a U-shaped frame 713 is fixedly connected at the surface of the workbench body 1 below the rotating block 712, and a T-shaped rod 714 is symmetrically slidably connected to the surface of the U-shaped frame 713, and a touch block 715 is fixedly connected to the top of the T-shaped rod 714, and a return spring 718 sleeved on the surface of the T-shaped rod 714 is symmetrically fixedly connected between the touch block 715 and the U-shaped frame 713, and a pressure rod 716 is fixedly connected to the bottom surface of the touch block 715, and a touch switch 717 is fixedly connected to the surface of the U-shaped frame 713 below the pressure rod 716.

[0059] It should be noted that: a plurality of air outlet holes are evenly arranged on the bottom surface of the air balancing plate 79, so that the cold air can be blown out evenly.

[0060] Working principle: When the welding device is used to weld the circuit board and the electrical components, the spacing between the two L-shaped clamps 58 is first adjusted according to the size of the circuit board. During the adjustment process, the spacing between the two L-shaped clamps 58 is first made slightly larger than the size of the circuit board. Then the circuit board is placed between the two L-shaped clamps 58. Then the welder rotates the bidirectional screws 57 with both hands at the same time. The two bidirectional screws 57 rotate synchronously and then drive the two L-shaped clamps 58 to approach each other until the two L-shaped clamps 58 clamp the circuit board, thereby fixing the circuit board to ensure that the circuit board will not move during the welding process, thereby ensuring the welding quality.

[0061] After the circuit board is fixed, the electrical components to be welded can be inserted into the surface of the circuit board, and the electrode leads of the electrical components can be inserted into the jacks on the surface of the circuit board in sequence until all the electronic components are plugged in. Then the electronic components can be pressed and fixed;

[0062] During the pressing process, the second cylinder 63 on the surface of the top plate 62 is started. The operation of the second cylinder 63 can drive the movable plate 66 to move downward in cooperation with the limit slide bar 64 and the L-shaped slide plate 65. The movement of the movable plate 66 then drives the elastic telescopic rod 67 to move downward for a distance. The downward movement of the elastic telescopic rod 67 then drives the pressing block 68 to move downward until the pressing block 68 can press against the surface of the shortest electrical component. At this time, the operation of the second cylinder 63 can be stopped, and the electrical component can be adaptively pressed using the elastic telescopic rod 67.

[0063] After the electronic components are pressed, the circuit board can be turned over. At this time, the welder starts the first cylinder 51, and the operation of the first cylinder 51 drives the first tooth plate 52 to move upward. The first tooth plate 52 moves upward and can drive the first gear 53 to rotate. The rotation of the first gear 53 can drive the first rotating shaft 54 ​​to rotate. The rotation of the first rotating shaft 54 ​​can drive the rectangular frame 56 to turn over as a whole. After the circuit board is turned over 180 degrees, the operation of the first cylinder 51 is stopped.

[0064] During this process, as the first rotating shaft 54 ​​rotates, the rotating block 712 can be driven to rotate. When the circuit board is flipped 180 degrees, the rotating block 712 rotates to the surface of the touch block 715. The touch block 715 is squeezed by the rotating block 712, so that the touch block 715 moves downward in cooperation with the T-bar 714, and the reset spring 718 is in a compressed state. At this time, the pressure rod 716 contacts the touch switch 717, and the fan 74 can be automatically controlled to run without human operation, which is convenient to use.

[0065] Then the welder can hold the welding gun 4 to weld the electronic components. In this process, a large suction force will be generated during the operation of the fan 74. At this time, the suction force can suck the smoke generated by welding into the first air duct 73 and the second air duct 75 through the suction hood 72 in sequence. The wind entering the second air duct 75 can then enter the cooling pipe 76, and the wind is cooled by the cooling water in the cooling pipe 76 and the cooling water tank 71. The cooled wind is then transported to the air balancing plate 79 through the third air duct 78, and then blown to the surface of the circuit board through the air balancing plate 79, which can cool the welding position and remove the circuit board quickly when the welding is completed. A certain distance is set between the air balancing plate 79 and the circuit board, so that the wind blown out by the air balancing plate 79 can blow softly to the surface of the circuit board, which can not only achieve cooling, but also prevent greater interference with the absorption of smoke.

[0066] During this process, the welding slag in the smoke is filtered through the filter plate 710, which can prevent the welding slag in the smoke from blowing onto the surface of the circuit board and affecting the welding of electronic components and circuit boards. The filtered welding slag can be collected centrally by the collection box 711;

[0067] After welding is completed, the first cylinder 51 can be started again to retract. At this time, the first tooth plate 52 moves down and then the first gear 53 can be reversed, so that the rectangular frame 56 can be restored to its initial state. At this time, the circuit board is restored to its initial clamping position, and then the second cylinder 63 is started to operate so that the pressure block 68 releases the pressure on the electronic components. Then the bidirectional screw 57 can be reversed so that the L-shaped clamps 58 on both sides move away from each other. Then the welded circuit board can be removed. There is no need for welders to frequently insert electronic components into the surface of the circuit board, and the welding efficiency is high.

[0068] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A welding device for processing a circuit board, comprising a workbench body (1), a support column (2) fixedly connected to the surface of the workbench body (1), and a fixing plate (3) fixedly connected to the top of the support column (2), wherein a welding gun (4) is fixedly mounted on the surface of the workbench body (1); Features: A reversible clamping assembly (5) is fixedly installed above the workbench body (1), and the reversible clamping assembly (5) comprises a first rotating shaft (54), a vertical plate (55), a rectangular frame (56), a bidirectional screw (57) and an L-shaped clamping strip (58); A multi-station pressing assembly (6) is fixedly mounted on the surface of the rectangular frame (56), and the multi-station pressing assembly (6) comprises a support rod (61), a top plate (62), a second cylinder (63), a movable plate (66), an elastic telescopic rod (67) and a pressing block (68); A smoke removal and cooling component (7) is fixedly mounted on the surface of the fixed plate (3), and the smoke removal and cooling component (7) comprises an air suction hood (72), a first air duct (73), a fan (74), a second air duct (75), a third air duct (78) and an air distribution plate (79).

2. The welding device for circuit board processing according to claim 1, characterized in that: The surface of the workbench body (1) is symmetrically fixedly connected with a vertical plate (55), the surfaces of the two vertical plates (55) are both rotatably connected with a first rotating shaft (54), a rectangular frame (56) is fixedly connected between the two first rotating shafts (54), the surface of the rectangular frame (56) is symmetrically rotatably connected with a bidirectional screw (57), the interior of the rectangular frame (56) is symmetrically slidably connected with an L-shaped clamp (58), and the L-shaped clamp (58) and the bidirectional screw (57) are threadedly connected.

3. The welding device for circuit board processing according to claim 2, characterized in that: One end of one of the first rotating shafts (54) extends to the outside of the vertical plate (55) and is fixedly connected to a first gear (53) arranged on the outside of the vertical plate (55); a first cylinder (51) is fixedly mounted on the surface of the workbench body (1); an output end of the first cylinder (51) is fixedly connected to a first toothed plate (52); and the first toothed plate (52) and the first gear (53) are meshingly connected.

4. The welding device for circuit board processing according to claim 2, characterized in that: A rubber pad (59) is fixedly connected to the surface of the L-shaped clamping strip (58).

5. The welding device for circuit board processing according to claim 1, characterized in that: The surface of the rectangular frame (56) is fixedly connected to a support rod (61) near its four corners, the top of the support rod (61) is fixedly connected to a top plate (62), the surface of the top plate (62) is fixedly mounted with a second cylinder (63), the output end of the second cylinder (63) passes through the top plate (62) and is fixedly connected to a movable plate (66) arranged below the top plate (62), the bottom surface of the movable plate (66) is fixedly connected to a plurality of elastic telescopic rods (67) at equal intervals, and the bottom end of each elastic telescopic rod (67) is fixedly connected to a pressing block (68).

6. The welding device for circuit board processing according to claim 5, characterized in that: An L-shaped slide plate (65) is symmetrically fixedly connected to the surface of the movable plate (66), a limit slide bar (64) is fixedly connected between the top plate (62) and the rectangular frame (56), and the L-shaped slide plate (65) is slidably sleeved on the surface of the limit slide bar (64).

7. The welding device for circuit board processing according to claim 1, characterized in that: A fan (74) is fixedly installed on the bottom surface of the fixed plate (3); an air inlet end of the fan (74) is fixedly connected to a first air duct (73); an end of the first air duct (73) is fixedly connected to an air suction hood (72); a filter plate (710) is fixedly connected to the surface of the air suction hood (72) by bolts; an air outlet end of the fan (74) is fixedly connected to a second air duct (75); a third air duct (78) is arranged at the end of the second air duct (75); a bottom end of the third air duct (78) extends to the lower side of the fixed plate (3) and is fixedly connected to an air distribution plate (79) arranged below the fixed plate (3).

8. The welding device for circuit board processing according to claim 7, characterized in that: A cooling water tank (71) is fixedly connected to the surface of the fixed plate (3); an end of the second air duct (75) extends into the interior of the cooling water tank (71) and is fixedly connected to a cooling pipe (76) disposed inside the cooling water tank (71); an end of the cooling pipe (76) is fixedly connected to a third air duct (78); and the third air duct (78) is fixedly connected to the cooling water tank (71).

9. The welding device for circuit board processing according to claim 7, characterized in that: A collection box (711) is slidably mounted on the surface of the workbench body (1) at a position below the air suction cover (72).

10. The welding device for circuit board processing according to claim 7, characterized in that: One end of the first rotating shaft (54) is rotatably connected to a rotating block (712); a U-shaped frame (713) is fixedly connected to the surface of the workbench body (1) at a position below the rotating block (712); a T-shaped rod (714) is symmetrically slidably connected to the surface of the U-shaped frame (713); a touch block (715) is fixedly connected to the top of the T-shaped rod (714); a return spring (718) sleeved on the surface of the T-shaped rod (714) is symmetrically fixedly connected between the touch block (715) and the U-shaped frame (713); a pressure rod (716) is fixedly connected to the bottom surface of the touch block (715); and a touch switch (717) is fixedly connected to the surface of the U-shaped frame (713) at a position below the pressure rod (716).

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